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Compaq Presario Laptop lost power

Model 1525 US working with battery and AC Power Supply Adaptor suddenly displayed message that battery was low and I should save work.
The external power supply was connected at the time.
The Power icon disappeared and the low battery icon appeared. I exited nicely. System shut down and will not turn on again without battery.
External Power Supply is good, reading nominal 18.5.
I have disassembled top cover palm rest and am looking at the little battery charger board in front of me. Could that be the problem or is there another circuit on board which would cause me to lose power with the supply connected. System is 5 years old.

Thanks in advance,
John K.

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Re: Compaq Presario Laptop lost power

I have the exact same problem this time with an ASUS A6KM laptop. When you press the power button on this laptop. Everything seems ok the hard disk starts up but nothing is displayed on screen. As soon as the ASUS bios logo is about to appear on the screen, the laptop shuts down. The same happens when the CD player button is pressed (as the laptop has a function to just play CD's off the CD drive without turning it on). The power supply seems fine it is pumping out the voltage it ought to. Has anyone got an idea of what this might be? People said its the motherboard and I find it hard to believe as these laptops are known for their reliability.

Posted on Jan 05, 2009

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Re: Compaq Presario Laptop lost power

The battery charger board, is what I would swap first.
Good luck, keep us posted.

Posted on Nov 15, 2007

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dear N9YK

you can follow this

If you have a loose connection where you plug in the power on your laptop, or it works intermittently, you could have a bad dc jack. Symptoms
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Why does this happen?
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  • Lots of plugging and unplugging of the ac adapter
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or you can check your dc amper in your adaptor




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